A fissure means a narrow opening or a crack developing for a considerable length and depth, which may have occurred due to some breaking or separation. But these fissures can happen to us humans too. An anal fissure is one of the most common problems that many of us suffer from. It can be referred to as abnormal breakage or maybe a tear of the skin and its surrounding lining tissues of the anus. Now in such situations, it could be embarrassing and discomfortable as well, because it causes itching, burning, and even pain in the rectum area. There could be many a reason for anal fissures to occur, from trauma to improper bowel movements (passing of large and hard tools) to even anal intercourse, and diarrhea, but the biggest cause can be found in our diet. Foods that are low in fiber, a diet high in salt, continued consumption of liquor, and too much caffeine can all be responsible and the answer to it is a fissure diet.